I don't know much...But I know that my BF's problems get a lot worse when he's fighting with the others or trying to keep control. When he relaxes and gives them some space to "be" then things go much better.
Kinda funny. It might sound like letting go a little and giving the others some room would make the switching worse, but it seems to be less often and definitely less intense. Like...when they have the chance to be heard, they don't need to shout anymore.
I hope you feel better soon.